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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 717924Generated: October 25, 2026

Potassium Carbonate → N-(imidazo[1,2-a]pyridin-7-ylmethyl)-5-[(4R)-2-oxo-4-(propan-2-yl)-1,3-oxazolidin-3-yl]thiophene-2-carboxamide

https://huagongshe.com/reaction/717924

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantN,N-DimethylethylenediamineHCID 66053—
Reactant(4R)-4-(Propan-2-yl)-1,3-oxazolidin-2-oneHCID 641505—
Reactant5-bromo-N-(imidazo[1,2-a]pyridin-7-ylmethyl)thiophene-2-carboxamideHCID 86701935—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
Solvent1,4-DioxaneHCID 31275—
ProductN-(imidazo[1,2-a]pyridin-7-ylmethyl)-5-[(4R)-2-oxo-4-(propan-2-yl)-1,3-oxazolidin-3-yl]thiophene-2-carboxamideHCID 86701938—

Reaction Steps

A solution of 5-bromo-N-(imidazo[1,2-a]pyridin-7-ylmethyl)thiophene-2-carboxamide (84 mg, 0.25 mmol), (R)-4-isopropyloxazolidin-2-one (32 mg, 0.25 mmol), N,N-dimethylethane-1,2-diamine (2 mg, 0.025 mmol), copper(I) iodide (5 mg, 0.025 mmol) and potassium carbonate (121 mg, 0.88 mmol) in dioxane (1 ml) was stirred at 110° C. overnight. Concentration and reverse phase chromatography provided the title compound. 1H NMR (400 MHz, methanol-d4) δ ppm 9.13 (t, J=5.3 Hz, 1H), 8.74 (d, J=5.5 Hz, 1H), 8.17 (s, 1H), 7.99 (s, 1H), 7.79 (s, 1H), 7.62 (d, J=4.1 Hz, 1H), 7.47 (d, J=7.0 Hz, 1H), 6.77 (d, J=4.2 Hz, 1H), 4.72 (s, 2H), 4.61-4.42 (m, 3H), 2.46 (ddd, J=10.2, 6.9, 3.5 Hz, 1H), 1.00 (d, J=7.0 Hz, 3H), 0.85 (d, J=6.8 Hz, 3H); (APCI(+)) m/e 385 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09193723B2
Source datasetuspto-grants-2015_11
ORD IDord-8485860624f549e0aea80b5072ae0e60
Source noteuspto-grants-2015_11